74122706320 has 80 divisors (see below), whose sum is σ = 186927410880. Its totient is φ = 27171436032.

The previous prime is 74122706293. The next prime is 74122706321. The reversal of 74122706320 is 2360722147.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (74122706321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111814 + ... + 400933.

It is an arithmetic number, because the mean of its divisors is an integer number (2336592636).

Almost surely, 2^74122706320 is an apocalyptic number.

It is an amenable number.

74122706320 is an abundant number, since it is smaller than the sum of its proper divisors (112804704560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74122706320 is a wasteful number, since it uses less digits than its factorization.

74122706320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512912 (or 512906 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 74122706320 in words is "seventy-four billion, one hundred twenty-two million, seven hundred six thousand, three hundred twenty".